Sumi palette
Ember Depot
Dark anchor, working middle, light release: #9b0904, #c8483a, #e86555, #ee7e6e, #ffa496 form a tetradic sumi set with somewhere to stand at every lightness. Made for packaging that photographs well under harsh retail light. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#9b0904
#c8483a
#e86555
#ee7e6e
#ffa496
The generator opens with #9b0904 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.